Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Enhancing the resistance to microbial induced corrosion of alkali-activated glass powder/GGBS mortars by calcium aluminate cement
Graphical abstract Display Omitted
Highlights AAC mortars were made using 75% of GP, 25% of GGBS/CAC, and GC as fine aggregate. Effect of CAC as a precursor mineral modifier to replace GGBS was investigated. Physicochemical features of AAC related to the sewer environment were discussed. 15% CAC content to replace GGBS can obtain better biogenic acid resistance.
Abstract Microbial-induced corrosion of ordinary Portland cement concrete due to its low biogenic acid resistance is still a global concern, requiring scientists to develop sustainable alternative binders. Accordingly, this study investigates the biogenic acid resistance of alkali-activated glass powder/GGBS mortars with various amounts of calcium aluminate cement (CAC) to replace GGBS while fixing the glass powder (GP) at 75% by mass. The results revealed that incorporating CAC to replace GGBS at 15% in alkali-activated cement (AAC) mortars improved the resistance to microbial-induced corrosion due to incorporating more Al into the AAC gels and can be proposed as a sewer repairing material.
Enhancing the resistance to microbial induced corrosion of alkali-activated glass powder/GGBS mortars by calcium aluminate cement
Graphical abstract Display Omitted
Highlights AAC mortars were made using 75% of GP, 25% of GGBS/CAC, and GC as fine aggregate. Effect of CAC as a precursor mineral modifier to replace GGBS was investigated. Physicochemical features of AAC related to the sewer environment were discussed. 15% CAC content to replace GGBS can obtain better biogenic acid resistance.
Abstract Microbial-induced corrosion of ordinary Portland cement concrete due to its low biogenic acid resistance is still a global concern, requiring scientists to develop sustainable alternative binders. Accordingly, this study investigates the biogenic acid resistance of alkali-activated glass powder/GGBS mortars with various amounts of calcium aluminate cement (CAC) to replace GGBS while fixing the glass powder (GP) at 75% by mass. The results revealed that incorporating CAC to replace GGBS at 15% in alkali-activated cement (AAC) mortars improved the resistance to microbial-induced corrosion due to incorporating more Al into the AAC gels and can be proposed as a sewer repairing material.
Enhancing the resistance to microbial induced corrosion of alkali-activated glass powder/GGBS mortars by calcium aluminate cement
Ali, Hafiz Asad (Autor:in) / Xuan, Dongxing (Autor:in) / Lu, Jian-Xin (Autor:in) / Poon, Chi Sun (Autor:in)
17.05.2022
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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